Gage-cock.



F. L. HOLT.

GAGE COCK.

APPLICATION FILED JAN. 8, I914- Patented Mar. 28,1916.

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5 haust directly toward the operator;

7 outlet tube 16 is provided incommumcation FRANK 1.. fnotr, or "momma,n

To'aZZ whom it who concern 1 Be it known t at I, FRANK L. Hour, a-

citizen of the United States, residing at Wichita, in the county ofSedgwick and State of Kansas, have invented certain new and usefulImprovementsin Gage-Cocks,

of which the following is a specification;

to p'roducea device of this character which i V can be cleaned orrepaired'without materially afi'ecting the boiler pressure.

Another object of the invention is to providea device in which iseliminated as far as practicable any danger of injury from escapingsteam. I

A still further object is to improve the valve and valve seat'elementsof this type of cock so' 'that'the valve seat maybe repeatedly dressedto accommodate the valve and the latter may be conveniently turned uponits seat for cleaning purposeswithout V disturbing any of the otherparts of the der so vice.

With these objects in view the invention.

tures of construction and organization as hereinafter described andclaimed, and in order that it may be fully understood reference is to behad to the accompanying draw- Figure 1, is a longitudinal sectionthrough I a gage cock embodying the features of my invention. Fig. 2, isa transverse sectlon on the line IIII of Fig. 1. i l l Referring to thedrawing, thedevlce comprises a tapered tubular member 2 havin suitableexternal threads for tightly fitting the same through the boiler headplate 4, the passage 8 through this member 2 being controlled by a valveplug 6. The outer end of the .member 2 is externally threaded forengagement by the inner end of a valve .casing 10. Within this casingoperates a valve stem 12 which threadedly engages the outer end of saidcasing. .The inner end of the valve stem is of larger ,diameter than itsthreaded end and is provided with a packing ring 14, it being understoodthat the valve stem must be inserted through 'the inner enlarged end ofthe casing 10 and cannot be withdrawn through the outer end of thecasing, thus guarding against careless operation of the valve allowingsteam to ex- 7 GAGE-000K.

Specification of Letters Patent. Application filed January 8, 1914.Serial' No. 811,104.

- age around the shank 24 water gage, the valve 6 will Patented luar.as, rare.

with the valve chamber 18 at the inner end of the valve casin 10.

The outer endo and adapted to receive the shank of a p ug 20, the headof which operates as a valve seat for the head 22 of a needle valve, theshank 24 of which extends axially through the stem 12. The head 22 istapered in both directions and ground for fittin both the valve seat andthe inner end 0% the stem 12. To guard further against any leakofl' itsseat, packing 26 is fitted in the outer end of the stem 12 about saidshank and retained in place by the washer 28 which serves also to hold ahandle 30 on the outer squared end of the stem 12. The shank 24 of thevalve is provided with a kerf 32 in its outer end to permit the use of asuitable tool. for turning the valve and a pin 34 for retaining thewasher 28 in place and efi'ecting outward movement of the needle valvewhen the valve stem 12 is unscrewed.

As'it is advisable frequently to test the be normally open. To make thetest, the handle 30 is turned to unseat the valve '22, and Water orsteam, as the case may be, will be allowed to escape in a lateraldirection by way of the outlet tube 16..

Provision of the kerf 32 allows the valve 22 to be turnedto clean thecontact between it and the valve seat 20, without removal of any of theparts or disturbing their adjustment. In case it should be necessary torebeen detached by opening the valve plug 6 and insertinga bent wirethrough the passage, the bent wire being used because it enables theoperator to perform the cleansing operation without danger of beingscalded.

From the foregoing it will be apparent that I have produced a gage cockpossessing the features of advantage enumerated as desirable and I wishit to be understood that while I have illustrated and described what nowappears to me to be the preferred embodiment of the same I do not desireto be the passage 8 is enlar ed when the valve is Q restricted to theexact details of construcand provided beyond the outer end of the tionand organization shown and described, casing with a turning handle, apacking bebut reserve the right to make all changes tween the enlargedportion of said stem and falling within the spirit and scope of the apthe surrounding portion of the casing to pended claim. prevent escape ofsteam or water around I claim: the threaded portion of the said stem, a

A gage cock comprising a tubular memneedle valve bearing againstthe'inner end her for screwing into a boiler, provided with of saidtubular stem and adapted to engage a valve intermediate the ends of itspassage, the valve-seat of the said plug, and provided a tubular headedplug screwed into the with a shank journaled in and extending outer endof the said member so that its through and beyond the bore of thetubupassage communicates with that of the said lar valve stem, a packingbetween the said tubular member and provided with a valveshank and thetubular valve stem to guard seat at its outer end, a casing secured onagainst leakage through the latter, a washer the outer end of thetubular member and infitting on the said shank and engaging the closingthe portion of the plug projecting outer end of the tubular valve stem,and beyond the outer end of said member, and means secured to the shankand holding the provided with a laterally-projecting outlet washer inposition.

tube, an inwardly-facing internal annular In testimony whereof, I afiixmy signashoulder, and internal threads outward of ture, in the presenceof two witnesses.

- said shoulder, a tubular externally-threaded FRANK L. HOLT.

valve stem engagmg the internal threads of the said casing and enlargedinward of the Witnesses: shoulder of said casing so as to be incapableS. F. KISNER, of being withdrawn outwardly therefrom J. W. LATZ.

